The Bosch IDS 2.0 is a true variable speed inverter heat pump at 20.5 SEER2, often $1,500–$2,500 less than equivalent Carrier/Trane/Lennox inverter systems.

Real world performance: excellent humidity control, very quiet outdoor unit, and the 10 year parts warranty matches the big brands. The catch: smaller dealer network make sure your installer has Bosch experience.